diff options
Diffstat (limited to 'apps/plugins/mpegplayer/alloc.c')
-rw-r--r-- | apps/plugins/mpegplayer/alloc.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/apps/plugins/mpegplayer/alloc.c b/apps/plugins/mpegplayer/alloc.c new file mode 100644 index 0000000000..0a3568ae5b --- /dev/null +++ b/apps/plugins/mpegplayer/alloc.c | |||
@@ -0,0 +1,76 @@ | |||
1 | /* | ||
2 | * alloc.c | ||
3 | * Copyright (C) 2000-2003 Michel Lespinasse <walken@zoy.org> | ||
4 | * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca> | ||
5 | * | ||
6 | * This file is part of mpeg2dec, a free MPEG-2 video stream decoder. | ||
7 | * See http://libmpeg2.sourceforge.net/ for updates. | ||
8 | * | ||
9 | * mpeg2dec 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 | * | ||
14 | * mpeg2dec 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 | * | ||
19 | * 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 | */ | ||
23 | |||
24 | #include "plugin.h" | ||
25 | |||
26 | #include "mpeg2.h" | ||
27 | |||
28 | extern struct plugin_api* rb; | ||
29 | |||
30 | long mem_ptr; | ||
31 | long bufsize; | ||
32 | unsigned char* mallocbuf; | ||
33 | |||
34 | void mpeg2_alloc_init(unsigned char* buf, int mallocsize) | ||
35 | { | ||
36 | mem_ptr = 0; | ||
37 | bufsize = mallocsize; | ||
38 | mallocbuf = buf; | ||
39 | |||
40 | return; | ||
41 | } | ||
42 | |||
43 | void * mpeg2_malloc (unsigned size, mpeg2_alloc_t reason) | ||
44 | { | ||
45 | void* x; | ||
46 | |||
47 | (void)reason; | ||
48 | |||
49 | if (mem_ptr + (long)size > bufsize) { | ||
50 | DEBUGF("OUT OF MEMORY\n"); | ||
51 | return NULL; | ||
52 | } | ||
53 | |||
54 | x=&mallocbuf[mem_ptr]; | ||
55 | mem_ptr+=(size+3)&~3; /* Keep memory 32-bit aligned */ | ||
56 | |||
57 | return(x); | ||
58 | } | ||
59 | |||
60 | void mpeg2_free(void* ptr) { | ||
61 | (void)ptr; | ||
62 | } | ||
63 | |||
64 | /* gcc may want to use memcpy before rb is initialised, so here's a trivial | ||
65 | implementation */ | ||
66 | |||
67 | void *memcpy(void *dest, const void *src, size_t n) { | ||
68 | size_t i; | ||
69 | char* d=(char*)dest; | ||
70 | char* s=(char*)src; | ||
71 | |||
72 | for (i=0;i<n;i++) | ||
73 | d[i]=s[i]; | ||
74 | |||
75 | return dest; | ||
76 | } | ||